Machine for waterproofing or coating paper



(No Model.) Y 2 sheets-sheet 1..

J. J. NEWMAN.

MAGHINB POR WATBRPROOPING 0R GOATING PAPER. NO- 497,198l Patented May 9, 1893..

A 7TOHNEYS.

(No Model.) Y 2 Sheets-Sheet 2 J. J. NEWMAN.

MACHINE POP. WATERPROOPING 0B GGATINGEAPER. l No. 497,198. Patented May 9,1893.

A TTOHNE YS.

UNITED STATES PATENT OEEICE.

J OI-IN J. NEWMAN, OF ELKIIART, INDIANA.

MACHINE FOR WATERPROOFING OR COATING PAPER.

SPECIFICATION forming part of Letters Patent No. 497,198, dated May 9, 1893. Application tiled December 20, 1892. Serial No. 455.839. (No model.)

To @ZZ whom it may concern.-

Be it known that I, JOHN J. N EWMAN, residing at Elkhart, in the county of Elkhart and State of Indiana, have invented certain new and useful Improvements in a Machine for Vaterproong or Coating Paper, of which the following is a speciiication.

My invention relates more particularly to improvements on asimilar machine, for which a patent Was granted me May 26, 1891, No. 443,090, and it consists in the construction and combination of parts hereinafter fully described in the specification and pointed out in the claims, reference being had to the accompanying drawings in which- Figure l is a side elevation of my improved machine partly in section. Fig. 2 is a top plan view of the same. Fig. 3 is an end View thereof and Fig. 4 is a cross section of the coating devices, taken on the line 4-4 Fig. 2.

In carrying out my invention I employ the usual cold calender rolls A and the paper receiving reel B between which are located the coating devices proper. These devices which .are most clearly illustrated in Figs. l and 3,

comprise the supporting frame C on the upperend of which is disposed the inclined coat- `ing tank D, formed with the false bottom d,

and a steam space d into which discharges a valved steam supply pipe E. The upper part ot' this tank is divided into a' series of spaces or troughs, one of which (indicated by l) extends around the sides and ends of the tank and forms a basin to receive the surplus Wax as it is scraped from the paper.

2 indicates the Wax distributing chamber, 3 the receiving chamber which receives the wax from the feed pipe F, presently more definitely referred to, and 4 the heating chamber which is of a much larger area than the chambers 2 and 8, and has a series of perforations 4fL in its bottom, which communicate with the steam space d', and through which the heating chamber is supplied.

I-I indicates a smooth metal plate or cover which extends over the chambers 2, 3 and 4 it having a series of longitudinal slits h at a point over chamber 2 through which the Wax is forced against the paper, as it passes over such slits.

So far as described the construction of the coating tank is substantially that shown in my other patent. In this case however I dispense with the smoothing plate shown in such patent and employ a roll J which is held `over the plate H, but does `not quite touch it, it serving to keep the paper down against the face of such plate and such roll has a hollow shaft formed by a steam pipe passed therethrough as shown. The roll J is journaled on the bracket members K, K, of the vertically movable brackets K K', which are pivotally connected to blocks 8 held to slide on the main frame; their outer ends being turned up as at k 7o to form journal bearings for the end guide rolls L L', such ends being adapted for a slight rocking movement by pivoting the brackets K K as shown.

L2 indicates an additional guide roll fixedly journaled on the main frame of the machine at a point to the rear of the coating box.

By reference to Fig. l it will be noticed that the rear roll L on the distributor, is located in the rear portion of the basin 1, or reservoir of the tank D, so that the surplus wax from such roll will be caught in the said basin or trough 1.

The several rolls over the coating tank are kept hot, by steam pipes which pass through them, and which form the journals therefor, and to provide t'or an oscillatory movement of such rolls, relatively to each other, the several transverse steam pipes a h c and d have universal joint connections a b c d with feed pipe sections a2 h2 c cl2 and e2 as most clearly shown in Fig. 1.

M indicates a Wax holding tank, supported on the floor, which has an inner wax holding chamber m surrounded by a steam or hot air chamber m', and such tank I term the melting tank, as all the surplus wax is fed back into it to be remelted. Inside of this melting tank is arranged a pump N, adapted to force the melted Wax up into a discharge pipe O which projects up and discharges into a main supply tank P, located above the coating devices, such pipe passing up through a larger pipe Q, extended up into the upper tank and discharging into the lower, such pipe serving as an overflow for the upper tank. This tank P which has a steam coil P in its bot-tom to keep the wax hot, has a discharge pipe F IOO through which the wax iiows by gravity, it having a valve r to regulate the flow, the lower end of such pipe discharging into the receiving chamber 3 of the coating tank D as shown.

S indicates a set of h ot squeeze rolls through which the coated paper passes after it leaves the coating tank which serve to more effectually remove the su rplux wax from the paper, such rolls being disposed over a suitably arranged catch basin T from which extends a waste pipeU which discharges into the 1n eltin g tank. V indicates a similar waste pipe which connects the basin or trough 1 of the coating tank D with the melting tank as shown. In practice all of the wax pipes have steam pipes surrounding them to keep the iiowin g wax hot.

YV WV indicate the cold blast pipes, arranged as shown which operate to effectually cool the paper before it reaches the reel.

The slide blocks S-S before referred to, to which are connected the rocker frames K are connected to and operated by the toggle 1evers Z Z arranged and constructed substantially in the manner shown in my patent above referred to.

The small guide rolls on the coating tank are driven by the calender rolls to travel at the same speed as the paper, suitably arranged sprocket wheel and chains being provided for such purpose, such not being here shown.

Frein the foregoing description taken in connection with the drawings it will be observed, that the paper as it leaves the calender rolls A, passes over the hot rolls L L under the smoothing roll J over the fixed guide roll L2, through the supplemental squeeze rolls S, between the pipes W and then over the reel.

By providing the hot guide rollsL L' anda hot smoothing roll J arranged substantially as shown ample means are provided forkeeping the paper in a proper condition to receive the coating, such rolls also servin g to straighten the paper.

The paper as it is fed in a forward direction passes with its lower face over the wax bed, and receives the Wax as it is forced up through the slits h from the feed chamber 3, and is thoroughly saturated thereby, the hot surface of the bed plate and the hot smoothing roll serving to eectually polish and keep V smooth the upper and lower faces of the I. In a paper coating machine the combination with the calender rolls A, the reel B, and the intermediate waxing tank, having Wax supplying devices and a hot coating plate over which the paper passes, of the vertically movable frames K K, the smoothing roll J, and guide rolls L L' journaled on such frames, said rolls J, L L having transverse steam pipe shafts, provided with steam pipe connections, and means for vertically moving such frames K K', all substantially as and for the purposes described.

2. In combination with the rolls A, the reel B, and the coating tank D, formed with a wax receiving, and a hot air chamber, a cover plate over which the paper passes, and asurrounding waste trough, of the frames K K', the smoothing roll J and the end guide rolls L L' held on such frames the upper guide roll L' held in the waste trough of the tank D, all substantiallyas and for thepurpose described.

3. In a paper coating machine the combination with the calender rolls A, the reel B and the coating tank D, arranged substantially as shown, of the vertically movable and oscillatory frames K K', the smoothing roll J, the guide rolls L L', said rolls having transverse steam pipes forming journal bearings said pipes mounted on such frames K K', steam feed pipes, and universal connections between such feed pipes and the transverse steam pipes, of the rolls J, L L' and means for moving the frames K and K vertically substantially as shown and described.

4. In a paper coating machine, the combination with the coating tank D, having a Wax distributing chamber, and a waste trough, of the wax holding tank P, disposed above the coating tank D, a supply pipe projected from the wax tank P and discharging into the distributing chamber of the coating tank, the melt-ing tank M adapted to receive the waste from the coating tank D and a pump connection between such tanks M and P all substantially as and for the purposes described.

5. In a paper coating machine essentially as described, the combination with the coating tank D having a wax distributing chamber and waste receiving compartment, the main supply tank, a valved feed pipe connected withsuch distributing chamber,awaste receiving tank, having a het air chamber, a waste pipe connecting such tank with the waste compartment of the coating table, a discharge pipe connecting the two wax tanks, a pump for forcing the wax up through such pipe into the main tank and an overflow pipe surrounding such discharge pipe, discharging into the Waste tank, all substantially as and for the purposes described.

6. As an improvement in paper coating machines, the combination of the calender rolls A, the reel B, the coating tank D, the smooth- 1 ing roll J, guide rolls L L L2 arranged substantially as shown, the supplemental squeeze rolls S, the upper wax tank P, having a feed IIO pipe to supply the coating table, the lower forced back into the upper or main tank all Waste receiving tank, a. waste pipe connectsubstantially as and for the purposes deing such tank with the coating table, a catch scribed.

basin under the squeeze rolls, a. waste pipe JOHN J. NEWMAN. connecting such basin and waste tank and a' Witnesses: pump and pipe connection between the upper NEWEL I-I. MILLER,

and lower tanks, whereby the waste wax is JAMES C. BARNES. 

